Use the correct case converter for |localName| and |tagName|

third_party/WebKit/Source/wtf/text/WTFString.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010, 2012 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 276 matching lines @@
     return String();
   return m_impl->lower(localeIdentifier);
 }
 
 String String::upper(const AtomicString& localeIdentifier) const {
   if (!m_impl)
     return String();
   return m_impl->upper(localeIdentifier);
 }
 
+String String::upperASCII() const {
+  if (!m_impl)
+    return String();
+  return m_impl->upperASCII();
+}
+
 String String::stripWhiteSpace() const {
   if (!m_impl)
     return String();
   return m_impl->stripWhiteSpace();
 }
 
 String String::stripWhiteSpace(IsWhiteSpaceFunctionPtr isWhiteSpace) const {
   if (!m_impl)
     return String();
   return m_impl->stripWhiteSpace(isWhiteSpace);
@@ skipping 510 matching lines @@
   return out << '"';
 }
 
 #ifndef NDEBUG
 void String::show() const {
   dataLogF("%s\n", asciiDebug(impl()).data());
 }
 #endif
 
 }  // namespace WTF